Lenses

Telecentric lenses

How to choose a telecentric lens

Telecentric and bi-telecentric lenses keep magnification constant through the depth of field, so parts measure the same size wherever they sit. Pick by magnification (sensor size / field of view), working distance and the largest sensor you use.

Shop by sensor format: 4/3-inch telecentric lenses · 1.1-inch telecentric lenses · 1-inch telecentric lenses · 2/3-inch telecentric lenses · 1/1.8-inch telecentric lenses · 1/2-inch telecentric lenses · 1/2.5-inch telecentric lenses · APS-C telecentric lenses · APS-H telecentric lenses · Full frame telecentric lenses
Shop by mount: F-mount telecentric lenses · M58-mount telecentric lenses · M42-mount telecentric lenses · M72-mount telecentric lenses
Shop by magnification: 0.1x telecentric lenses · 0.2x telecentric lenses · 0.3x telecentric lenses · 0.4x telecentric lenses · 0.5x telecentric lenses · 0.6x telecentric lenses · 0.7x telecentric lenses · 0.8x telecentric lenses · 1x telecentric lenses · 1.5x telecentric lenses · 2x telecentric lenses · 2.5x telecentric lenses · 3x telecentric lenses · 4x telecentric lenses · 6x telecentric lenses

2965 models Configure a systemAll lenses
Telecentric lenses

2881-2904 of 2965 models

Products

Compare
LS-TCL-13750.4x, WD 208 mm, 1.75", M42-mount telecentric lens 0.4xM421.75"208 mmF10.4Ø 79 mm$2,619.00 Ships in 2-3 weeks
LS-TCL-13590.53x, WD 338 mm, M58-mount telecentric lens 0.53xM58Full frame338 mmF10Ø 82 mm$2,749.00 Ships in 2-3 weeks
LS-TCL-13551.11x, WD 150 mm, M95-mount telecentric lens 1.11xM95Large format150 mmF7Ø 79.2 mm$2,729.00 Ships in 2-3 weeks
LS-TCL-13920.166x, WD 173 mm, 2/3", C-mount telecentric lens 0.166xC-mount2/3"173 mm3.3 to closedØ 66 mm$2,319.00 Ships in 2-3 weeks
LS-TCL-13541.173x, WD 152 mm, M95-mount telecentric lens 1.173xM95Large format152 mmF7Ø 75 mm$2,629.00 Ships in 2-3 weeks
LS-TCL-13190.167x, WD 200 mm, 1", C-mount telecentric lens 0.167xC-mount1"200 mmF6.4Ø 99.6 mm$3,089.00 Ships in 2-3 weeks
LS-TCL-13300.2x, WD 350 mm, 1.1", C-mount telecentric lens 0.2xC-mount1.1"350 mmF7Ø 91 mm$2,899.00 Ships in 2-3 weeks
LS-TCL-13490.853x, WD 125 mm, M72-mount telecentric lens 0.853xM72Large format125 mmF6Ø 72.7 mm$2,579.00 Ships in 2-3 weeks
LS-TCL-13660.148x, WD 520 mm, 1/1.7", C-mount telecentric lens 0.148xC-mount1/1.7"520 mmF8Ø 63.5 mm$2,409.00 Ships in 2-3 weeks
LS-TCL-13910.178x, WD 260 mm, 2/3", C-mount telecentric lens 0.178xC-mount2/3"260 mmF4.9-32Ø 64 mm$2,269.00 Ships in 2-3 weeks
LS-TCL-13260.37x, WD 250 mm, 1.1", C-mount telecentric lens 0.37xC-mount1.1"250 mmF7.1Ø 48.7 mm$1,919.00 Ships in 2-3 weeks
LS-TCL-13481x, WD 102 mm, M72-mount telecentric lens 1xM72Large format102 mmF7Ø 62 mm$2,279.00 Ships in 2-3 weeks
LS-TCL-13210.263x, WD 150 mm, 1", C-mount telecentric lens 0.263 / 0.256xC-mount1"150 / 180 mmF6.563.2 / 64.8 mm$2,259.00 Ships in 2-3 weeks
LS-TCL-13531.419x, WD 123 mm, M95-mount telecentric lens 1.419xM95Large format123 mmF7Ø 62 mm$2,339.00 Ships in 2-3 weeks
LS-TCL-13930.142x, WD 265 mm, 2/3", C-mount telecentric lens 0.142xC-mount2/3"265 mmF4.9Ø 80 mm$2,639.00 Ships in 2-3 weeks
LS-TCL-13290.287x, WD 220 mm, 1.1", C-mount telecentric lens 0.287xC-mount1.1"220 mmF8Ø 64 mm$2,269.00 Ships in 2-3 weeks
LS-TCL-13900.179x, WD 260 mm, 2/3", C-mount telecentric lens 0.179xC-mount2/3"260 mmF8Ø 61.5 mm$2,219.00 Ships in 2-3 weeks
LS-TCL-13280.3x, WD 158 mm, 1.1", C-mount telecentric lens 0.3xC-mount1.1"158 mmF6.2Ø 61.3 mm$2,209.00 Ships in 2-3 weeks
LS-TCL-13890.179x, WD 150 mm, 2/3", C-mount fixed-magnification lens 0.179xC-mount2/3"150 mmF6.3Ø 61.4 mm$2,209.00 Ships in 2-3 weeks
LS-TCL-13870.3x, WD 110 mm, 2/3", C-mount telecentric lens, length 145.5 mm 0.3xC-mount2/3"110 mm3.75 to closedØ 37 mm$1,649.00 Ships in 2-3 weeks
LS-TCL-13180.286x, WD 180 mm, 1", C-mount fixed-magnification lens 0.286xC-mount1"180 mmF7Ø 55.9 mm$2,089.00 Ships in 2-3 weeks
LS-TCL-13640.55x, WD 83 mm, 4/3", C-mount telecentric lens 0.55xC-mount4/3"83 mmF8Ø 41.8 mm$1,769.00 Ships in 2-3 weeks
LS-TCL-13650.191x, WD 135 mm, 1/1.7", C-mount fixed-magnification lens 0.191xC-mount1/1.7"135 mmF5.2Ø 49.2 mm$1,939.00 Ships in 2-3 weeks
LS-TCL-13880.3x, WD 110 mm, 2/3", C-mount telecentric lens, length 145.5 mm with coaxial light 0.3xC-mount2/3"110 mm3.75 to closedØ 37 mm$1,649.00 Ships in 2-3 weeks

How to choose a telecentric lens

A telecentric lens keeps the image size of the part constant when the part moves closer or farther within the depth of field, and removes perspective, so edges and holes are measured at their true size. Choose by magnification, sensor and working distance.

1. Magnification = sensor size / field of view

The field of view is the sensor size divided by the magnification. Pick the magnification that fits the part with a small margin, or let the telecentric lens calculator work it out for your sensor and part:

MagnificationField of view, 2/3-inch sensor (8.8 x 6.6 mm)Field of view, 1.1-inch sensor (14.1 x 10.3 mm)
0.1x88 x 66 mm141 x 103 mm
0.2x44 x 33 mm70.5 x 51.5 mm
0.3x29.3 x 22 mm47 x 34.3 mm
0.5x17.6 x 13.2 mm28.2 x 20.6 mm
0.8x11 x 8.3 mm17.6 x 12.9 mm
1x8.8 x 6.6 mm14.1 x 10.3 mm
2x4.4 x 3.3 mm7.1 x 5.2 mm
4x2.2 x 1.7 mm3.5 x 2.6 mm

2. Sensor format

The lens must be rated for the camera's sensor format or larger, or the corners go dark. Larger sensors need larger (and longer) lenses with F-mount or M58 / M72 mounts.

3. Object-side or bi-telecentric

Object-side telecentric lenses keep the magnification constant as the part moves. Bi-telecentric lenses are telecentric on the camera side too, so small focus changes and sensor tilt do not change the size either: the choice for the highest measuring accuracy.

4. Working distance, depth of field, front size

Check the working distance against the space in the machine, and the depth of field against how much the part height varies. The front of the lens must be larger than the field of view - a telecentric lens only sees what fits in front of it.

5. Lighting

For silhouettes, pair the lens with a collimated backlight: parallel light gives the sharpest edges. For surface features use a coaxial light that fits the lens.